Regulation device for explosion-motors.



No. ssa,|o|. Patented Nov. 5, mm. W. A. MAYBACH.

REGULATION DEVICE FOR EXPLOSION MOTORS.

(Application filed Mar. 28, 1801.1

(No Model.)

. e 0 d e oGm crrwr e n1: uqnms PETERS 60., WOTMITHO. WAIHIIOTON. D. c.

NITED STATES.

PATENT OFFIcE.

WILHELM MAYBAoH, or ,GANNSTADT, GERMANY, Ass 'G oR To DAIIVILER MANUFACTURING COMPANY, on NEW YORK, N. Y., A CORPORATION on NEW YORK.

REGULATION DEVICE FOR xfiLoslou moToas.

SPECIFICATION forming part of Letters Patent No. 686,101, data Ndveinber 1901.

Application filed March 28, 1901.

To aZZ whom it may concern..-

Be-it known that I, WILHELM A. MAYBACH,

a subject of the Emperor of Germany, and

a resident of Cannstadt, in the Kingdom of 5 VViirtemberg, Germany, have invented certain Improvements in Regulation Devices for Explosion-Motors, of which the following is a specification.

My invention relates to certain improvements in governing mechanism for gas or explosion motors, having for its object the pro vision of a device operated by a suitable centrifugal governor which shall regulate the quantity of liquid combustible drawn into the cylinder on the charging stroke of the engine and which shall be simple in construction and reliable in action. These objects I attain as hereinafter described, reference being had to the accompanying drawing, in which the figto me is a longitudinal sectional view of the upper portion of an explosion-motor, showing my improved device used in connection with the carbureter and the passages connecting the same with the engine-cylinder.

In the drawing, A is the cylinder of the engine, in which operates a piston, the upper part of the same being shown at B. The cylinder in the present case has a water-jacket a and a passage a extending from its end,

0 in which is situated a spring-controlled inletvalve a constructed to be periodically operated by any suitable mechanism known to the art.

O is a casing having in it a float D, to-which is attached a valve d, constructed to fit a valve-seat d in a passage 01*, leading from a reservoir for the liquid combustible to the said casing. A passage 0 connects the easing 0 with the inlet-passage a through the injector c, the float D acting in the wellknown manner to keep the combustible in the casing at a constant level. Extending from the upper part of the said casing'is an auxiliary passage 0 also connecting between 5 it and the passagea, there being a valve e constructed to fit a suitable seat in said passage. To the spindle e of this valve is attached the lever 6 properly connected to a centrifugalor other speed governor and constructed to open the valve e when the speed Serial No. 53,346. (No niodel.)

of the engine rises above a certain predetermined point. The stem 6 of the valve has in it a groove a so placed that when the valve is closed it forms communication between the upper portion of the casing O and the atmosphere, this connection being cut ofl? as soon as the valve is opened. The outer end of the passage a is open to the atmosphere through the space 0.

In operation on the charging stroke of the piston B air is drawn through the passage (1, the valve a being open. This flow of air sucks the combustible fluid from the injector c in a fine spray, mixing with the same, and after being compressed is exploded in the well-known manner common to by far the greater number of gas-engines. The groove in the valve-stem 6 allows air to enter the casing C in order that the fluid may be free to flow from itoutof theinjector. As thespeed of the engine reaches and finally passes the predetermined point for which it was designed the governor operates upon the lever 2 opening the valve e and forming connection between the passage a and the upper part of the casin g C. When on the next charging stroke air is drawn into the cylinder A,little or no combustible fluid will be drawn through the injector in View of the fact that the pressure is approximately the same within the casing and at the said injector. It will be noted that the act of opening the valve 6 cuts off the communication of the interior of the casing with the atmosphere in order that pressure on the two surfaces of the combustible may be equal and that the amount of said liquid drawn through the injector may depend upon the amount of opening of the valve 6. The partial cutting off of the combustible fluid or the extreme dilution of the mixture drawn 0 into the engine-cylinder so reduces the force of the explosion that the speed of the engine is quickly and surely reduced until a point has been reached where the valve is closed and combustible fluid is again sucked in full 5 stream from the injector.

I claim as my invention- 1. The combination of an engine-cylinder,

a piston, a casing connected to a reservoi jgr combustible fluid, means" in tli'e c sing' for Ioo' regulating the level of fluid therein, a passage connecting one end of the engine-cylinder with the atmosphere, a valve therein, an injector connected with the casing opening into said first passage, a second passage connecting the top part of the casing and the first passage and a valve in said second passage, substantially as described.

2. The combination of an engine-cylinder,

a piston therein, a passage extending from one a valve therein, a passage connecting said casing with the main inlet-passage of the engine, an auxiliary passage also connecting the casing with said inlet-passage, a valve in said passage and means connected to the valve whereby the interior of the'easing is put in communication with the atmosphere when said valve is closed and cut off therefrom when the valve is open, substantially as described.

4. The combination of a cylinder, a piston, a casing connected to a reservoir for liquid fuel, means in the casing for keeping the fuel at a constant depth therein, a passage connecting one end of the said cylinder with the atmosphere, an auxiliary passage connecting the casing and said first passage, a valve therein, a valve-rod supporting the same and a passage in the said rod connecting the interior of the casing with the atmosphere when the said valve is closed and constructed to cut 

